On Sun, Jun 30, 2024 at 08:26:06AM +0200, Jan Stary wrote:
> This is current/amd64 on a PC (full dmesg below).
> I got my hands on an M-Audio Fast Track Ultra 8R,
> an USB audio interface; eight tracks, 24/96, nice.
>
> It doesn't seem to be supported though:
> it attaches as an ugen, but no uaudio.
>
> umidi0 at uhub4 port 2 configuration 1 interface 3 "M-Audio Fast Track Ultra 8R" rev 2.00/1.51 addr 3
> umidi0: (genuine USB-MIDI)
> umidi0: out=1, in=1
> midi0 at umidi0: <USB MIDI I/F>
> ugen0 at uhub4 port 2 configuration 1 "M-Audio Fast Track Ultra 8R" rev 2.00/1.51 addr 3
>
> This happens in any USB slot.
>
> What can I do to debug this?
> Is anyone using this on OpenBSD?
>
> It is an USB-compliant audio device,
> macOS and Windows use it just fine.
It seems that the uaudio driver doesn't even try to attach. You could
instrument the uaudio_match() kernel function, and try to figure out
why it returns UMATCH_NONE for your device.
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